Single Layer Drying Behavior of Apple Slices in a Microwave Dryer

Abstract:

In this study, the drying behaviour of single layer apple slices of 5mm thickness in a microwave dryer was investigated experimentally for four different microwave power levels (90 W, 180 W, 360 W and 600 W) and suitability of drying models available in the literature in simulating the drying behaviour of apple slices was determined by statistical analysis. The performance of these models was determined by comparing the coefficients of determination (R), reduced chi-squares (χ2) and root mean square errors (RMSE) of the models. The results show that drying time and energy consumption decreases considerably with increasing microwave power. The results also show that, among of the models proposed, the Verma et al. model gives the best fit with experimental data for all drying conditions considered. In order to determine the colour change of apple, a colour meter was also used in this study and found that L* and a* values were not significantly different from the values of the fresh apples.

• Periodical: Defect and Diffusion Forum (Volumes 312-315)
• Pages: 842-847
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.312-315.842
• Online since: April 2011
• Authors: Soner Çelen, Kamil Kahveci, Ugur Akyol
• Keywords: Apple, Diffusion, Drying, Modeling

References

[1] H. O. Menges and C. Ertekin: Journal of Food Engineering Vol. 77 (2006), p.119.

[2] A.K. Eliçin and K. Saçılık: Journal of Agricultural Sciences Vol. 11 (2005), p.207.

[3] T. Funebo and T. Ohlsson: Journal of Food Engineering Vol. 38 (1999), p.353.

[4] A. Andres, C. Bilbao and P. Fito: Journal of Food Engineering Vol. 63 (2004), p.71.

[5] E. Akpınar Kavak and Y. Biçer: Journal of Food Process Engineering Vol. 26 (2003), p.515.

[6] C. Contreras, M.E. Martin-Esparza, A. Chiralt and N. Martinez-Navarrete: Journal of Food Engineering Vol. 88 (2008), p.55.

[7] H. Feng and J. Tag: Vol. 63 (1998), p.679.

[8] A. Khoshhal, A. A. Dakhel, A. Etemadi and S. Zereshki: Journal of Food Process Engineering Vol. 33 (2009), p.298.

DOI: 10.1111/j.1745-4530.2009.00435.x

[9] B. Adu, L. Otten and R. B. Brown: Canadian. Agricultural Eng. Vol. 36 (1994), p.135.

[10] İ. Alibas: LWT - Food Science and Technology Vol. 40 (2007), p.1445.

[11] Z. W. Cui, S. Y. Xu and D. W. Sun: Drying Technology Vol. 21 (2003), p.1173.

[12] Z. W. Cui, C. Y. Li, C. F. Song and Y. Song: Drying Technology Vol. 26 (2008), p.1517.

[13] S. K. Giri and S. Prasad: International Journal of Food Properties Vol. 9 (2006), p.409.

[14] T. M. Lin, T. D. Durance and C. H. Scaman: Food Research Int. Vol. 31 (1998), p.111.

[15] H. Feng, J. Tang, R.P. Cavalieri and O.A. Plumb: AICHE J. Vol. 47 (2001), p.1499.

[16] M. E. Martin-Esparza, N. Martinez-Navarrete, A. Chiralt and P. Fito: Journal of Food Engineering Vol. 77 (2006), p.51.

[17] K. Kahveci and A. Cihan in: Focus on Food Engineering Research and Developments, (2007), pp.13-163.

[18] M. Maskan (2000). Journal of Food Engineering Vol. 44 (2000), p.71.

[19] A. Cihan, K. Kahveci and O. Hacıhafızoğlu: Journal Of Food Engineering Vol. 79 (2007), p.293.